From the discussion in one of our private groups: People say that by far the most they have paid in fees was for lightning payments. And some are shitcoiners and have paid for defi and more then a few...
It depends how you use lightning. I spend from my own node with channels to bfx. Its almost always few sats as a comission. If you are a merchant and need liquidity you have to pay (somebody provides it and takes around 0.5% as Boltz).